I have had the same thing...
Two small red bumps showed up on my stomach just to the right of my belly button. They were very itchy so I assumed it was some kind of insect bite. The next day another appeared and the others were even more painful and itchy.
I thought maybe they were ingrown hairs from shaving but that didn't explain the itch. I plucked the hairs and the bumps stopped itching. But they are still very red and inflammed.
It has been three days and I have about 5 more.
Also, I have three itchy bumps around my mouth. They look like pimples, with little white heads, but they are very very itchy.
I am not sure what it is...maybe scabies?